Permission is granted for anyone to use any models here or elsewhere for any purpose. It would be nice if you cite me as the creator if you publish it. Some models do not conform to the manufacturers dimensions. Most can be readily changed to the dimensions you desire by changing the proper SY (symbol or variable) value. Symbol cards (lines) start with SY and are found near the top of the document. These were made to be my tools for my personal edification so some may be less than polished and perfect ,but they served the purpose I wanted. The point is, user beware, validation (AGT, segment checks ect) are up to you. I don't know of any broken or mangled models but if you find one please inform me here ghz24@freeshell.org I check my mail at least once a month so be patient. Regards GHz24